#include <stdio.h>
#include <stdlib.h>
 


	double power(double x, int n)
	{
	double xk;
	if {(n==1)
			double=x;
			return 1;}
	if {(n % 2 == 1)
	     xk=binpow (a, n-1) * a;
			}
		else {
		  xk = binpow (a, n/2);
		  xk=xk*xk;
				}
	}	
int main()
{
	 scanf("%d", &n, &x);
printf("%lf/n", power( x, n));
system('pause");
}